The Status property of a device indicates whether it is communicating—good status is “{ok}” (no status flags). However, if using New to add a device, initial Status may be down or fault, as shown in Figure 29. This could mean device address properties are yet unassigned, or are misconfigured.

If a device status fault, see the Fault Cause property value for more details.

Status of devices is verified by successful polling, or the device status “ping” as configured in the network component’s Monitor configuration. See About Monitor.

From the Device Manager view, you can also right-click a device, and from the popup menu select Actions->Ping to manually verify communications.

Depending on conditions, a device may have one of various status flags set, including fault or disabled, or others in combination, such as down, alarm, stale, and/or unackedAlarm. In the Device Manager, non-ok status in indicated for any device by row color other than white.

By default, device Enabled is true—you can toggle this in the property sheet, or in the Device Manager (by selecting the device and using the Edit button). See Caution.

Device Health contains historical properties about the last successful message received from the device, including timestamps.